<?php
/**
 * crcl/base
 *
 * Copyright 2013 CRCL - André Sabosch - info@crcl.de
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace crcl\base\database\renderer;

interface IConcrete
{
  public function execute();
  public function setQuery(\crcl\base\database\query\IConcrete $oQuery);
}

abstract class Concrete implements IConcrete
{

  public function execute()
  {
    if (\is_null($this->oQuery))
    {
      throw new Exception('No query set.', Exception::ERROR_NOQUERYSET);
    }
  }

  public function setQuery(\crcl\base\database\query\IConcrete $oQuery)
  {
    $this->oQuery = $oQuery;
    return $this;
  }

  /** PRIVATE *************************************************************************************/

  protected $oQuery = \NULL;
  protected $result = \NULL;
}